Where to sleep
We were traveling by van and therefore didn't stay overnight in Porto as we didn't fancy a parking space in the city. Experience has shown that these are usually very expensive and not very good in cities. So we drove to the Duoro Valley and spent the night there for free at a winery that we found on Park4Night: Quinta da Padrela.
In addition to a parking space, we even had electricity, a clean toilet and shower and a free guided tour of the winery followed by a wine tasting. The concept of the owners of Quinta da Padrela is clear: they want to attract campers so that they test and buy their wine. We did the same, but we were happy to do so. Because this way we had a wonderful stay in the Duoro Valley and at the same time still have delicious wine for our loved ones and ourselves at home.